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					</table><p>Perovskite nanosheets can be a new laser medium, where l<a href="https://phys.org/tags/light+amplification/" target="_blank" rel="noopener">ight amplification</a> can be achieved based on tiny perovskite nanosheets that are synthesized chemically, researchers from the <a href="https://www.pusan.ac.kr/eng/Main.do" target="_blank" rel="noopener">Pusan National University</a> in Korea have found.</p>
<p>Perovskite nanosheets are two-dimensional structures arranged in a sheet-like configuration on the nanoscale, making them a valuable component across various applications such as solar technologies.</p>
<p>While the light amplification in perovskite quantum dots has been reported in previous research, they have failed to provide an adequate quantitative analysis.</p>
<p>In a recent study published in the journal Light: Science and Applications, a team of researchers led by Kwangseuk Kyhm from the Department of Optics &amp; Mechatronics at Pusan National University has found a way to enhance signal amplification in perovskite nanosheets of CsPbBr3 with a unique waveguide pattern.</p>
<p>Researchers found that a &#8220;gain coefficient&#8221; is necessary to assess the light amplification ability, whereby the essential characteristic of a laser medium is revealed. An efficient laser medium has a large gain, and scientists have been exploring ways to boost this gain.</p>
<p>While studying the excitation and temperature dependence of the gain contour and the patterned waveguide based on polyurethane-acrylate, the team managed to boost the gain and thermal stability of perovskite sheets.</p>
<p>Enhanced amplification and increased efficiencies are expected to help perovskite solar cells compete better with traditional silicon-based solar cells. With the ability to optimize laser operation, the research claims to be an important piece in allowing devices with perovskite applications to operate more reliably.</p>
<p>&#8220;So far, perovskite quantum dots have been studied for lasers, but such zero-dimensional structures have fundamental limits. In this regard, our work suggests that the two-dimensional structure of perovskite nanosheets can be an alternative solution,&#8221; says Khym.</p>
<p>Several new methods have been devised to increase the efficiency and scalability of perovskite cells. A team at Hong Kong&#8217;s City University has <a href="https://www.mercomindia.com/researchers-boost-thermal-robustness-perovskite" target="_blank" rel="noopener">developed</a> a method to enhance the thermal robustness of these cells.</p>


New Method to Boost Signal Amplification in Perovskite Nanosheets

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